+ Semi-automatic chamfering of the saw blade

+ Adjustable chamfer angle

+ Attachment for cutting in chip breaker grooves

PowerStar 850Sharpening, re-toothing and chamfering of metal-cutting circular saw blades with CBN-abrasive grinding

Adjustable chamfer angle

VIDEO 1 VIDEO 2

Operator interface with Icons

Attachment to grind in chip 2

breaker grooves

Electronic Hand Wheel 1

Friction teeth

Solid carbide teeth

Curved back teeth with chamfer Straight back teeth

Peg teeth / Pendelum teeth

Curved back teeth with chip breaker

grooves

PowerStar 850

The machine captivates through its

versatility and ease of use as well as its

rigidity and to achieve an exceptional

grinding quality. The PowerStar 850 will

therefore meet the highest expectations.

Programming is done through a

large touch screen. Through a clear

representation with the help of user

friendly symbols, the operation is very

simple and all settings are available at

a glance. Changes can therefore be

made quickly.

The machine indicates to the operator

the optimal grinding speed necessary.

Rake and clearance angles for all

standard teeth are readily available.

The manual grinding wheel insertion is

easy and safe for the operator.

In most cases the sharpening is done in

one saw blade revolution only.

Through the direct drive for the grin-

ding spindle unwanted vibrations are

avoided and lifetimes of the grinding

wheels are improved.

After sharpening saw blades or new-

toothing of saw blades, the chamfering

operation can be selected. The grinding

head and the cooling nozzles will auto-

matically move to the correct chamfe-

ring position. With the help of the cursor

keys or an electronic hand wheel the

tooth is put in position to slightly touch

the rotating grinding wheel. Close the

door and press START – the rest is

done by the machine !

The machine allows adjustment of the

chamfer angle in 5° steps from 0 – 45

degrees ( standard value ).

A saw blade support at the point of

grinding will ensure the chamfers are

ground symmetrically.

Features and accessories

Examples of tooth shapes

The PowerStar 850 is a flexible, CNC controlled High-Tech-Grinding machine for the complete treatment of Metal Cutting Circular Saws.

Advantages of the PowerStar 850Complete Processing

+ Including sharpening, cutting off

existing teeth, re-toothing

+ Semi-automatic chamfering

+ Cutting in chip breaker grooves with

additional attachment

+ Additional tooth shapes and tooth

geometries available

Short non-productive and grinding times

+ The next grinding program

can be entered in

advance while machine

is in operation.

+ Only one flange

required for saw

blades ranging from

130 – 850 ( 920 ) mm

Flexible Use

+ Hook and clearance

angle freely adjustable

+ Adjustable chamfer

angle

+ Additional tooth

shapes and tooth

geometries available

+ Vario-Tooth Shapes

+ Precision Grinding ( ability to grind

multiple saw blades to the exact

same outside diameter )

+ Changing of grinding speed between

diamond grinding wheels or CBN

grinding wheels

+ Large saw blade diameter range from

40 – 850 ( 920 ) mm

High grinding quality

+ CBN deep grinding and extra fine

filtration of the coolant

+ Precision spacing for tooth pitch

accuracy

+ Rigid machine, low-vibration direct

drive grinding spindle, CBN-abrasive

grinding and effective cooling and

coolant filtration

+ Saw blade bracket at the point

of grinding

Machine available for use with water-based emulsion or oil coolant

Low space requirement – integrated coolant tank and high pressure coolant pump

Advantageous price- performance ratio

Optional Accessories:

+ Effective exhaust filters for oil or

water based emulsion

+ External, maintenance friendly

fine filter system for HSS or

Carbide chips in addition to the

integrated coarse filtration.

+ Internet connection for remote

diagnostic system

4 controlled axes,

including 2 simultaneous CNC controlled axes

Technical Data

Range of Operation

Saw blade grinding Ø ( 40 ) 130 – 850 ( 920 ) mm

Saw blade chamfering Ø ( 105 ) 145 – 850 ( 920 ) mm

Tooth pitch 1 – 40 mm

Tooth height max. 17 mm

Number of teeth 2 – 998

Saw blade thickness up to 8 mm

Grinding wheels

CBN or DIA Ø 200 mm ( 14F1 )

Bore size Ø 32 mm

Cooling

Coolant pressure approx. 6 bar

Coolant type Water emulsion / Oil

Coolant quantity 300 l

Electrical installation

Grinding motor power 3 kW

Machine input power approx. 6,5 – 8,9 kVA

Weight

net. approx. 1250 kg

Dimensions ( W x D x H )

Machine 1250 x 1875 x 2200 mm

Height with air extractor ( oil ) approx. 2300 mm ( approx. 2650 mm with type 3001 )

Height with air extractor ( water ) approx. 2650 mm

Required door opening size for transportation ( H ) min. 2020 mm

1

1

2

2

3

3

4

4

5

5

6

6

A A

B B

C C

D D

Oberflächenangaben DIN EN ISO 4287

Allgemeintoleranzen DIN ISO 2768-mH

Gez.Gepr.

Erst.

Datum Name

Bezeichnung

Werkstoff

Oberflächenbehandlung

Härteangabe

Maßstab

IndexTyp-Nr.Bl.v. Bl.Mat.-Nr.

17.01.2018 FENDRICHM

Prospektansicht 1:11 1

A31039207 PowerStar 850 -10000448079/FZG/001/-

In Erstellung

Size ISO 14405 Hüllbedingung

v y

z

x

w

Ra 25 Ra 0,8

Ra 0,4Ra 12,5

Ra 3,2

Loroch GmbHD-69509 Mörlenbach

1250

2200

1875

2300

Öl/oil

2650

Was

ser/

wate

r

1

1

2

2

3

3

4

4

5

5

6

6

A A

B B

C C

D D

Oberflächenangaben DIN EN ISO 4287

Allgemeintoleranzen DIN ISO 2768-mH

Gez.Gepr.

Erst.

Datum Name

Bezeichnung

Werkstoff

Oberflächenbehandlung

Härteangabe

Maßstab

IndexTyp-Nr.Bl.v. Bl.Mat.-Nr.

17.01.2018 FENDRICHM

Prospektansicht 1:11 1

A31039207 PowerStar 850 -10000448079/FZG/001/-

In Erstellung

Size ISO 14405 Hüllbedingung

v y

z

x

w

Ra 25 Ra 0,8

Ra 0,4Ra 12,5

Ra 3,2

Loroch GmbHD-69509 Mörlenbach

1250

2200

1875

2300

Öl/oil

2650

Was

ser/

wate

r

Loroch GmbH – Ein Unternehmen der VOLLMER Gruppe

Josef-Loroch-Str. 1, 69509 Mörlenbach, Germany

phone +49 (0)6209 7159-50, fax +49 (0)6209 7159-38

info@loroch.de, www.loroch.de

Technical changes reserved | 180214-1

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